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Pentax AF-540FGZ II Flash is Designed to be tougher, smaller and lighter, this strobe is 30% smaller in volume than its predecessor. This hot shoe mounted, bounce-and-swivel, auto-zoom flash provides a variety of advanced flash applications.
The Pentax AF-540FGZ II has different features 28 seals, including the hot shoe, that enable a reliable weather-resistant digital imaging system. This unit has a guide number of 177' at ISO 100 and 85mm along with a 35mm equivalent zoom range of 24-85mm, though the auto zoom function is compatible with smaller format Q-series mirrorless cameras, APS-C DSLRs, and medium format 645-series digital cameras. Also, with the use of a built-in diffusion panel the coverage can be extended to 20mm. Another benefit of this flash is tilt from -10 to 90° and rotation 135° to the left and 180° to the right for complete bounce functionality.
The AF540FGZ II has wireless master and slave TTL capabilities with access to 4 channels. It utilizes an optical pulse to transmit information and trigger flash units up to 13.1' away. Also, this unit can be set as a master, control, or slave unit and has access to a contrast control sync setting that enables the adjustment of the output of multiple flashes from a single unit.
An added feature for this flash is a constant LED light with 5 output settings for use during video, as an AF assist light, or as simply another light for your subject. Other settings include a multi-flash mode for stroboscopic photography as well as slow, high-speed, first and second curtain sync. Additionally, the AF540FGZ II runs on 4 AA batteries with a recycle time of 2.6-26.2 seconds and it comes with a case and stand.
Mount
Shoe
Guide No.
177.17'; (54 m) ISO100
Angle of Coverage
31° - 78° Horizontal Wide-Angle Adapter: 98° Horizontal 23° - 60° Vertical Wide-Angle Adapter: 85° Vertical
Vari-Power
1/1 - 1/256
Bounce Head
+90 to -10°
Swivel Head
315°
Coverage
20 - 85 mm (Full Frame)
Distance Range
2.62 to 26.25' (0.8 to 8.0 m) at f/5.6
Zoom Head
Full Frame: 24 - 85 mm
Recycle Time
Approximately 3 - 5 Seconds
Flash Duration
1/1200 - 1/20000 sec
Flash-Ready Indicator
Yes
Compensation
-4 EV to +2 EV (in 1/3 and 1/2 EV steps)
Wireless Operation
Method: Optical pulse Distance: Up to 13.12' / 4.0 m
Wireless Communication Channels
4 Channels
Power Source
4x AA Alkaline, Lithium, Rechargeable NiMH Batteries
Dimensions (W x H x D)
3.0 x 4.4 x 4.3" / 76.2 x 111.8 x 109.2 mm
Weight
12.35 oz / 350.12 g
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